CN105396653A - Vertical mill for calcium carbonate grinding - Google Patents

Vertical mill for calcium carbonate grinding Download PDF

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Publication number
CN105396653A
CN105396653A CN201510816779.9A CN201510816779A CN105396653A CN 105396653 A CN105396653 A CN 105396653A CN 201510816779 A CN201510816779 A CN 201510816779A CN 105396653 A CN105396653 A CN 105396653A
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CN
China
Prior art keywords
vertical mill
pipe
grinding aid
grinding
calcium carbonate
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CN201510816779.9A
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Chinese (zh)
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CN105396653B (en
Inventor
彭贵明
陈华平
雷礼强
李林富
王晓洪
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Sichuan Yixin New Materials Co Ltd
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Sichuan Yixin New Materials Co Ltd
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Priority to CN201510816779.9A priority Critical patent/CN105396653B/en
Publication of CN105396653A publication Critical patent/CN105396653A/en
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Abstract

The invention discloses a vertical mill for calcium carbonate grinding. The vertical mill comprises a vertical mill body (1), and a feeding pipe (2), an air outlet pipe (3), an air inlet pipe (4) and an air pressure air locking device arranged at a discharging hole of the vertical mill body (1) are arranged on the vertical mill body (1); and a grinding aid adding device is further arranged at the position of the feeding pipe (2) of the vertical mill body (1), and a material layer stabilization device is arranged at the roll-in portion of the vertical mill body (1). The vertical mill has the beneficial effects that the material layer stability is good, a grinding aid is stably conveyed, and the output amount of the grinding aid can be adjusted.

Description

A kind of Vertical Mill for calcium carbonate grinding
Technical field
The present invention relates to calcium carbonate powder to produce, particularly a kind of Vertical Mill for calcium carbonate grinding.
Background technology
Grinding is one important procedure during breeze is produced, and it is by mechanical means by granularity extremely suitable for ore particles material grinding, to meet industrial requirement.In powder-grinding process, material particles is progressively refined by equipment fine grinding, specific area increases, its surface is charged because of chemical bond rupture, particle absorption can form caking or sticky on abrasive body and liner plate mutually, mill efficiency is declined, add the consumption of the energy, in order to solve the problem, most of producer adopts and adds grinding aid and solve this problem in grinding process.And ore particles is when grinding, little for ensureing grinding machine vibratory output, grinding machine stable operation, the stable condition that is absolutely necessary of its bed of material, the mode stablizing the bed of material is at present sprayed water in Vertical Mill, increase the frictional force between material, thus ensure on mill, form the uniform bed of material, reduce the vibration of grinding machine.But in present actual production process, one-sided multiple spot water spray, sprays water uneven, the material between mill and grinding roller can be caused uneven, thus cause the high vibration of grinding machine, affect the normal operation of equipment, and the many ejections of water spray now is water column, water column will be formed the bed of material and wash away, and makes it produce pit, thus causes the bed of material unstable, and the current of water column have mobility, easily make bed of material local excessively wet, affect mill and grinding roller milling to material, make its milling quality not high.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, provide a kind of bed of material good stability, grinding aid to carry stable and that grinding aid output quantity the is adjustable Vertical Mill for calcium carbonate grinding.
Object of the present invention is achieved through the following technical solutions: a kind of Vertical Mill for calcium carbonate grinding, it comprises Vertical Mill, described Vertical Mill is provided with a feed pipe, discharge pipe and blast pipe and is arranged on the blast airlock of Vertical Mill discharging opening, also be provided with a grinding aid adding set at the feed pipe place of Vertical Mill, the roll-in position of Vertical Mill is provided with a bed of material stabilising arrangement.
Described grinding aid adding set comprises grinding aid accumulator tank, grinding aid holding vessel, make-up pump, measuring pump and spray equipment, described grinding aid accumulator tank is connected with grinding aid holding vessel, and on the pipeline connected, make-up pump is installed, described grinding aid holding vessel is connected with spray equipment by pipeline, and measuring pump is provided with on the pipeline connected, in described grinding aid holding vessel, two ends are provided with a liquid level sensor up and down, described liquid level sensor, make-up pump and measuring pump are all connected with a controller, and between controller and measuring pump, be provided with a frequency converter, described spray equipment is arranged in feed pipe.
Described bed of material stabilising arrangement comprises the distributive pipe of an annular, distributive pipe is connected with a high-pressure intake pipe, and distributive pipe is provided with multiple outlet pipe, and described outlet pipe penetrates the sidewall of Vertical Mill, and be tightly connected with the junction of Vertical Mill, described outlet pipe front end is provided with a vaporific spray equipment.
Described grinding aid holding vessel lower end is provided with two branch road water pipes, described branch road water pipe is all arranged by a measuring pump, the branch road water pipe at measuring pump two ends is all provided with check-valves, described branch road water pipe is connected with vaporific spray equipment respectively, and the bypass line that described grinding aid holding vessel is connected with measuring pump is also provided with a filter.
Described distributive pipe is provided with the outlet pipe of more than at least eight, and outlet pipe is evenly distributed in the annular circumferential of distributive pipe.
Described vaporific spray equipment comprises a shower be tightly connected with outlet pipe, the inner hollow of shower, and its termination is closed, and the sidewall of shower offers multiple aperture, be provided with helicla flute in described aperture, and the water side of aperture is provided with a spreading grooves.
The present invention has the following advantages: Vertical Mill of the present invention, be provided with bed of material stabilising arrangement, this device is provided with multiple outlet pipe, vaporific spray equipment is provided with in outlet pipe, the spray water of ejection, can be absorbed by calcium carbonate granule fast, thus there will not be calcium carbonate granule to cross wet phenomenon, after calcium carbonate granule is wetted, then add the frictional force between calcium carbonate granule, ensure the stable of the bed of material, improve the efficiency of calcium carbonate granule abrasive dust, and spray water, also can not wash away the bed of material, thus further ensure that the stable of the bed of material; And this Vertical Mill is also provided with grinding aid adding set, this device is provided with frequency converter and measuring pump, can control the spray flux of grinding aid, thus meet Vertical Mill different feeds amount to the demand of grinding aid, improve abrasive dust production quality, be provided with liquid level sensor, automatically can add grinding aid to grinding aid holding vessel, without the need to worrying that grinding aid is finished, therefore ensure that the stable spray of grinding aid; Be provided with two measuring pumps, realize the using and the reserved, further ensure grinding aid steady and continuous spray.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is grinding aid adding set structural representation;
Fig. 3 is bed of material stabilising arrangement structural representation;
Fig. 4 is the structural representation of vaporific spray equipment;
Fig. 5 is the cross-sectional schematic of A-A in Fig. 4;
In figure, 1-Vertical Mill, 2-feed pipe, 3-discharge pipe, 4-blast pipe, 11-grinding aid accumulator tank, 12-grinding aid holding vessel, 13-make-up pump, 14-measuring pump, 15-spray equipment, 16-liquid level sensor, 17-controller, 18-branch road water pipe, 19-check-valves, 111-filter, 112-frequency converter, 21-outlet pipe, 22-distributive pipe, 23-high-pressure intake pipe, the vaporific spray equipment of 24-, 25-shower,, 251-aperture, 252-helicla flute, 253-spreading grooves.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described, and protection scope of the present invention is not limited to the following stated:
As shown in Figure 1, a kind of Vertical Mill for calcium carbonate grinding, it comprises Vertical Mill 1, described Vertical Mill 1 is provided with a feed pipe 2, discharge pipe 3 and blast pipe 4 and is arranged on the blast airlock of Vertical Mill discharging opening, also be provided with a grinding aid adding set at feed pipe 2 place of Vertical Mill 1, the roll-in position of Vertical Mill is provided with a bed of material stabilising arrangement.
In the present embodiment, as shown in Figure 2, described grinding aid adding set comprises grinding aid accumulator tank 11, grinding aid holding vessel 12, make-up pump 13, measuring pump 14 and spray equipment 15, described grinding aid accumulator tank 11 is connected with grinding aid holding vessel 12, and on the pipeline connected, make-up pump 13 is installed, described grinding aid holding vessel 12 is connected with spray equipment 15 by pipeline, and measuring pump 14 is provided with on the pipeline connected, in described grinding aid holding vessel 12, two ends are provided with a liquid level sensor 16 up and down, described liquid level sensor 16, make-up pump 13 and measuring pump 14 are all connected with a controller 17, and between controller 17 and measuring pump, be provided with a frequency converter 112, described spray equipment 15 is arranged in feed pipe, the flow of measuring pump 14 is regulated by frequency converter 112, thus realize the adjustment helping profit agent flux.
Further, described grinding aid holding vessel 12 lower end is provided with two branch road water pipes 18, described branch road water pipe 18 is all arranged by a measuring pump 14, the branch road water pipe 18 at measuring pump 14 two ends is all provided with check-valves 19, described branch road water pipe 18 is connected with spray equipment 15 respectively, when a measuring pump 14 works, another is then stand-by pump, when a wherein measuring pump 14 irregular working, export without flow and be, automatically stand-by pump will be started by controller 17, the bypass line 18 that described grinding aid holding vessel 12 is connected with measuring pump 14 is also provided with a filter 111, filter 111 blocks rear automatic alarm, pressure difference switch is provided with on the pipeline at filter 111 two ends, filter pressure at two ends is detected by pressure difference switch, pressure reduction exceedes design load will start another measuring pump 14 automatically.
In the present embodiment, the course of work of grinding aid adding set is as follows, it is synchronous with Vertical Mill startup-shutdown that controller 17 controls spray equipment, after Vertical Mill start feeds intake, controller 17 carries out setting speed according to inventory to frequency converter 112, be adjusted to the flow of setting, by the control of frequency converter 112 pairs of measuring pumps, grinding aid in grinding aid holding vessel 112 is sprayed in feed pipe 12 uniformly by spray equipment 15, then grinding aid is brought in Vertical Mill 1 by powder again, when the liquid level sensor 16 of grinding aid holding vessel 12 lower end detects that liquid level is too low, then controller 17 controls make-up pump 13 and works, to rise in grinding aid holding vessel 12 in grinding aid accumulator tank 11, when the liquid level sensor 16 of grinding aid holding vessel 12 upper end detects liquid level, then controller 17 controls make-up pump 13 and quits work, stop adding grinding aid in grinding aid holding vessel 12, in specific implementation process, the storage capacity of grinding aid holding vessel 12 at least can meet the use amount of a day.
In the present embodiment, as Fig. 3, shown in Fig. 4 and Fig. 5, described bed of material stabilising arrangement comprises the distributive pipe 22 of an annular, distributive pipe 22 is connected with a high-pressure intake pipe 23, distributive pipe 22 is provided with multiple outlet pipe 21, described outlet pipe 21 penetrates the sidewall of Vertical Mill 1, and be tightly connected with the junction of Vertical Mill 1, described outlet pipe 21 front end is provided with a vaporific spray equipment 24, described vaporific spray equipment 24 comprises a shower 25 be tightly connected with outlet pipe 21, the inner hollow of shower 25, and its termination is closed, the sidewall of shower 25 offers multiple aperture 251, helicla flute 252 is provided with in described aperture 251, and the water side of aperture 251 is provided with a spreading grooves 253, water under high pressure forms High-Pressure Water in shower 25, High-Pressure Water flows along aperture 251, helicla flute 252 then makes High-Pressure Water produce a high pressure cyclone, then sprayed by the spreading grooves 253 of aperture 251 front end, formed vaporific under the effect of water high pressure cyclone and spreading grooves 253 again, thus accomplish that aproll is even, avoid water column washing away the bed of material, the bed of material is made to there will not be pit, thus ensure that the stable of the bed of material, and vaporific current, the dust degree in Vertical Mill can be reduced, after the vaporific globule contacts with particulate material simultaneously, can be absorbed by particulate material fast, make particulate material wetted, thus the cementability increased between particulate material and particulate material and frictional force, thus make the bed of material when by the extruding of roller mill, not easily pile up, thus ensure that the stable of the bed of material.
In the present embodiment, described distributive pipe 22 is provided with the outlet pipe 21 of more than at least eight, and outlet pipe 21 is evenly distributed in the annular circumferential of distributive pipe 22, thus can sprays water to some position multiple in Vertical Mill, meet need of production.

Claims (6)

1. the Vertical Mill for calcium carbonate grinding, it comprises Vertical Mill (1), described Vertical Mill (1) is provided with a feed pipe (2), discharge pipe (3) and blast pipe (4) and is arranged on the blast airlock of Vertical Mill discharging opening, it is characterized in that: be also provided with a grinding aid adding set at feed pipe (2) place of Vertical Mill (1), the roll-in position of Vertical Mill is provided with a bed of material stabilising arrangement.
2. a kind of Vertical Mill for calcium carbonate grinding according to claim 1, it is characterized in that: described grinding aid adding set comprises grinding aid accumulator tank (11), grinding aid holding vessel (12), make-up pump (13), measuring pump (14) and spray equipment (15), described grinding aid accumulator tank (11) is connected with grinding aid holding vessel (12), and on the pipeline connected, make-up pump (13) is installed, described grinding aid holding vessel (12) is connected with spray equipment (15) by pipeline, and measuring pump (14) is provided with on the pipeline connected, in described grinding aid holding vessel (12), two ends are provided with a liquid level sensor (16) up and down, described liquid level sensor (16), make-up pump (13) is all connected with a controller (17) with measuring pump (14), and be provided with a frequency converter (112) between controller (17) and measuring pump, described spray equipment (15) is arranged in feed pipe.
3. a kind of Vertical Mill for calcium carbonate grinding according to claim 1 and 2, it is characterized in that: described bed of material stabilising arrangement comprises the distributive pipe (22) of an annular, distributive pipe (22) is connected with a high-pressure intake pipe (23), distributive pipe (22) is provided with multiple outlet pipe (21), described outlet pipe (21) penetrates the sidewall of Vertical Mill (1), and be tightly connected with the junction of Vertical Mill (1), described outlet pipe (21) front end is provided with a vaporific spray equipment (24).
4. a kind of Vertical Mill for calcium carbonate grinding according to claim 3, it is characterized in that: described grinding aid holding vessel (12) lower end is provided with two branch road water pipes (18), described branch road water pipe (18) is all arranged by a measuring pump (14), the branch road water pipe (18) at measuring pump (14) two ends is all provided with check-valves (19), described branch road water pipe (18) is connected with spray equipment (15) respectively, and the bypass line (18) that described grinding aid holding vessel (12) is connected with measuring pump (14) is also provided with a filter (111).
5. a kind of Vertical Mill for calcium carbonate grinding according to claim 4, it is characterized in that: the outlet pipe (21) described distributive pipe (22) being provided with more than at least eight, and outlet pipe (21) is evenly distributed in the annular circumferential of distributive pipe (22).
6. a kind of Vertical Mill for calcium carbonate grinding according to claim 5, it is characterized in that: described vaporific spray equipment (24) comprises a shower (25) be tightly connected with outlet pipe (21), the inner hollow of shower (25), and its termination is closed, the sidewall of shower (25) offers multiple aperture (251), be provided with helicla flute (252) in described aperture (251), and the water side of aperture (251) is provided with a spreading grooves (253).
CN201510816779.9A 2015-11-23 2015-11-23 A kind of Vertical Mill for calcium carbonate grinding Active CN105396653B (en)

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Application Number Priority Date Filing Date Title
CN201510816779.9A CN105396653B (en) 2015-11-23 2015-11-23 A kind of Vertical Mill for calcium carbonate grinding

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CN105396653A true CN105396653A (en) 2016-03-16
CN105396653B CN105396653B (en) 2018-07-10

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106238154A (en) * 2016-09-08 2016-12-21 南京凯盛国际工程有限公司 Outer circulation Vertical Mill grinding aid bringing device
CN107413455A (en) * 2016-03-25 2017-12-01 成都宸鸿科技有限公司 A kind of full-automatic roller cuts grater

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191204290A (en) * 1911-03-15 1912-11-28 James Wheeler Fuller Improvements in Pulverizer Mills.
CN2164323Y (en) * 1993-07-22 1994-05-11 张宗隆 Easy adjusting nozzle
JPH06296886A (en) * 1993-04-16 1994-10-25 Kawasaki Heavy Ind Ltd Production of fine powder of granulated blastfurnace slag
CN102580818A (en) * 2012-02-06 2012-07-18 郭健 Vertical grinding machine
CN203140205U (en) * 2013-03-19 2013-08-21 上海宝田新型建材有限公司 Vertical mill grinding aid spraying device
CN203379933U (en) * 2013-07-23 2014-01-08 中材(天津)粉体技术装备有限公司 Internal water spraying device of vertical roller mill
CN203725201U (en) * 2014-02-19 2014-07-23 北京电力设备总厂 Medium-speed vertical mill applied to petroleum coke grinding
CN205109761U (en) * 2015-11-23 2016-03-30 四川亿欣新材料有限公司 A stand and grind for calcium carbonate powder grinds

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191204290A (en) * 1911-03-15 1912-11-28 James Wheeler Fuller Improvements in Pulverizer Mills.
JPH06296886A (en) * 1993-04-16 1994-10-25 Kawasaki Heavy Ind Ltd Production of fine powder of granulated blastfurnace slag
CN2164323Y (en) * 1993-07-22 1994-05-11 张宗隆 Easy adjusting nozzle
CN102580818A (en) * 2012-02-06 2012-07-18 郭健 Vertical grinding machine
CN203140205U (en) * 2013-03-19 2013-08-21 上海宝田新型建材有限公司 Vertical mill grinding aid spraying device
CN203379933U (en) * 2013-07-23 2014-01-08 中材(天津)粉体技术装备有限公司 Internal water spraying device of vertical roller mill
CN203725201U (en) * 2014-02-19 2014-07-23 北京电力设备总厂 Medium-speed vertical mill applied to petroleum coke grinding
CN205109761U (en) * 2015-11-23 2016-03-30 四川亿欣新材料有限公司 A stand and grind for calcium carbonate powder grinds

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107413455A (en) * 2016-03-25 2017-12-01 成都宸鸿科技有限公司 A kind of full-automatic roller cuts grater
CN106238154A (en) * 2016-09-08 2016-12-21 南京凯盛国际工程有限公司 Outer circulation Vertical Mill grinding aid bringing device

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